(25* 4+ 27* 5 )* (100-25 *4 )
=275 *(25*4 ) -100
=275* 0
=0
Lời giải:
$(25\times 4+27\times 5)\times (100-25\times 4)=(25\times 4+27\times 5)\times 0$
$=0$
( 25 x 4 + 27 x 5 ) x ( 100 - 25 x 4 )
= ( 25 x ( 4 + 5 )) x ( 100 - 100 )
= ( 25 x 9 ) x 0
= 225 x 0
= 0
học tốt nha
(25*4+27*5)*(100-25*4)
=(25*4+27*5)*(100-100)
=(25*4+27*5)*0
=0